package cn.edu.nuc.ssm.interceptors;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import cn.edu.nuc.ssm.entity.sysuser;

public class BackInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		
		HttpSession session = request.getSession();
		
		sysuser sysuser = (sysuser) session.getAttribute("user");
		
		if(sysuser==null){
			
			request.setAttribute("msg", "请登录");
			request.getRequestDispatcher("/user/login").forward(request, response);
			
			return false;
		}
		
		return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		// TODO Auto-generated method stub

	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub

	}

}
